The main applications of SPR-Self Piercing Riveting is
processing the new materials fastening for lightweight car
productions, due to the important measures of lightweight car
body is to introduce new material. Self Piercing Riveting can
fasten the different metal material with good sealing and
protect penetration function. The processes are more stable and
the contact surface is more smooth, save much time and humans
cost, lower energy consumption, small occupation area
,Applicable scope: coated steel sheet, aluminum,zinc,
reinforced plastic, compound material etc.
Operating Principle：Blank holder move downward first for
preloading tight the riveting material to prevent two metal
pieces moving under riveting pressure. Then the power head move
downward for piercing the upper material, in the hollowing
block, the rivet tail opened and formed a bell shape to locking
base material under the impact of power head.
Case 1: The thicker material should be put as base material if
fasten the same metal material.
Case 2: The metal should be put as base material if fasten
metal and non-metal material.
